Question

Find the volume of a right circular cylinder of height $21cm$ and base radius $5cm$.

Answer 1

Find the volume of a right circular cylinder.

Given,

The radius of a cylinder $=5cm$

The height of a cylinder $=21cm$

We know that

The volume of cylinder of radius $r$ and height $h$ $={\mathrm{\pi r}}^2\mathrm{h}$

$\therefore V=\frac{22}{7}\times 5\times 5\times 21$ $\left(\because \mathrm{\pi }=\frac{22}{7}\right)$

$\Rightarrow V=22\times 5\times 5\times 3$

$\therefore V=1650c{m}^3$

Hence, the required volume of the cylinder is $1650c{m}^3$.